Magnetic Analysis Corp  

103 Fairview Park Drive
Elmsford,  NY  10523-1544

United States
914-530-2000
https://www.mac-ndt.com

• Booth: D46362

Magnetic Analysis will be featuring the new Rotomac® 25 RM eddy current rotary, designed for use in slow throughput operations such as cold headers in fastener production, spring makers, and other parts manufacturers, at its booth # D46362 at the Fabtech Show.  

The Rotomac®25 RM, coupled with MAC’s Minimac® 60/65 eddy current electronics, designed for  rotary probe operations, provides cost effective, reliable on-line inspection for longitudinal surface defects in wire and rod. Operating at 1000 RPM, with air ride probes and a single test channel, it handles wire, 1/8” – 1” (3mm – 25mm) diameter, typically used for parts forming. Test probe adjustments are easily accessible. Typical throughput speeds are 12 ft./min to 40 ft./min.  Bushings keep the product centered dur­ing the test and the rotary’s highly accurate distance compensation, when using an absolute probe, permits testing excessively out of round product. 

For over 90 years, MAC® has been a leader in nondestructive testing. We provide instruments, systems and solutions that are recognized the world over as the standard for NDT. At the core of our comprehensive portfolio of NDT options are Eddy Current (ECT), Magnetic Flux Leakage (MFL) Ultrasonic (UT) and Phased Array (PAUT) testing equipment. MAC® has the unique ability to provide quality service throughout most of the world, and our global network provides a team of industry experts, highly trained engineers and seasoned field representatives who can understand your testing needs.

 Press Releases

• AFFORDABLE, HIGH PERFORMANCE TESTING WITH MAC’S MINIMAC® 55 (Jun 27, 2021)

  Minimac® 55 brings high performance eddy current testing to a broad range of tube production applications, at an affordable price. This eddy current tester offers the robust capabilities of Magnetic Analysis Corp.’s top of the line MultiMac®, in a powerful, compact design.  

  The instrument is especially well suited for dedicated, continuous production line testing where simple setup, without the need for constant operator adjustment, is desirable. Once the optimum settings have been established, a lockout mode feature can be set to prevent unauthorized changes.

  With MAC’s proprietary MultiMac® performance, the single channel MiniMac® 55 instrument features software controls for all functions, including phasing, filtering and sensitivity, all while operating at speeds over 4000 fpm.  The test results are displayed in full-color polar and linear mode showing real time, true wave form signals for easy review on a separate on-site monitor or at remote locations.  The Track screen depicts the test product’s length, with data on line speed, end suppression, flaw tracking, piece count and alarm routing.

  Linear strip charts and complete test data, as well as an unlimited number of settings can be stored, annotated and recalled from a library on the internal storage device or network. When networked, multiple instruments can share the same library to ensure correct settings in multiple test lines. Setup and monitoring can be handled through a computer network, and reports with customer, product information, defect location, time, amplitude and phase, can be stored locally or on a network server for quick follow-up and quality assurance.

  Defects and conditions that can be readily detected by the MultiMac® 55 include finding short surface and some subsurface defects such as laps, slivers and cracks in tube, and locating weld line faults, including short ID or OD defects. The Minimac, using the MID model, can also detect magnetic inclusions such as iron filings in non-ferrous material. 

  MAC’s broad range of encircling and sector test coils is available for use with the MultiMac® which can also be configured for flaw or absolute mode, depending on the application. Coil Platforms, including those with DC saturation for testing magnetic material, are offered.

  Magnetic Analysis Corp.
  103 Fairview Park Drive, Elmsford, New York 10523-1544
  Tel: +1-914-530-2000   Fax: +1-914-703-3790
  www.mac-ndt.com

• QUALITY CONTROL FOR COPPER ALLOYS (Jun 27, 2021)

              Magnetic Analysis Corp. offers a range of eddy current test instruments and systems for detecting surface and sub surface defects in copper and copper alloy wire and bar. This versatile and generally cost-effective technology is being used in a broad range of wire and rod applications.

              A U.S. wire alloy producer of wire for components and conductors has been successfully using MultiMac® single channel eddy current testers for several years to inspect their full line of wire product, including zirconium copper and beryllium copper alloys ranging from .033” (0.838mm) to .25” (6.35mm) diameter.  The test is part of the finish inspection conducted at speeds up to 200’ per minute.  Typical defects being detected include surface defects in plating, and sub surface anomalies in bonding, and inclusions in multiple layers. A noise cancelling test coil, which minimizes noise from mechanical vibration in the wire, provides improved performance.

                  In another application, MultiMac® eddy current testers will be used to inspect continuous copper wire rod, used as feedstock in the production of wire copper strips. The rods range from .5mm (.01968”) to 3.5mm (.13778”) and the test is looking for external defects such as scratches, dents, and gaps, at speeds running up to 20m/s. A specially designed Wire Tracker test coil platform will be used to provide stability in feeding the bar.

                  At a continuous cast copper rod mill in China a MultiMac® eddy current tester is installed just before the coiler, but after the rod is produced and drawn down to smaller diameters. The tester assesses grade, using MAC’s Grading Software, and detects magnetic inclusions, using a MID test coil. The Grading Software provides a convenient, efficient means of automatically categorizing the quality level of individual segments and entire coils of wire, rod, and bar during production. The customer can customize the defect types, each based on a specific threshold gate, specify the maximum number of defects for each grade level, and configure reports. Surface defects as well as inclusions are detected and categorized. In this instance, rod graded higher is drawn down to even smaller diameters. Lower grades are not drawn down as much to avoid problems with breakage in the wire which could end up causing a disruptive downtime to rethread the drawing machine.

  Magnetic Analysis Corp.
  103 Fairview Park Drive, Elmsford, New York 10523-1544
  Tel: +1-914-530-2000   Fax: +1-914-703-3790
  www.mac-ndt.com

• ECHOMAC® ULTRASONIC SYSTEMS FOR ERW TUBING (Jun 27, 2021)

  Magnetic Analysis Corp. is now offering a selection of Echomac® Ultrasonic NDT systems for producers of ERW tube, ranging from the latest cost effective Robotic and Cantilevered Phased Array designs, to conventional Cantilever UT systems. 

  A U.S. tube mill recently installed one of MAC’s new Echomac® PA TW Robotic Phased Array systems to detect weld zone defects in tube and pipe.  This cost-effective system uses a single phased array transducer to sequentially monitor scarf, evaluate laminar defects, or detect longitudinal OD/ID defects, typical of the welding process, all without the need for mechanical movement or operator adjustment to realign the system with the weld location. Installation can be on-line in the hot zone for profile and flaw detection or in a lower temperature area for flaw detection after forming and shaping.  B-scan and C-scan views of the quality of the weld and seam-trim tool alert the operator to any issues with the scarfing process. No averaging or AGC is used for processing the data.  The robot’s small footprint allows the customer to select the exact part of the process to be monitored ensuring the highest possible yield of production pipes.

  MAC’s Echomac® Phased Array Ultrasonic system installed in an ERW mill in Greece, is testing OCTG oil and gas line pipe, ranging from 50mm to 190mm diameter with 12 different wall thicknesses. The test head is supported by a cantilevered beam. The Echomac® is installed in the welding hot zone where it inspects for flaws and weld profile variances that can alert the operator to weld-line scarfing problems before the tube enters the forming rolls. A Rotoflux® flux leakage system is installed on the same line, after the forming rolls, to test for flaws. A Minimac® 50 eddy current instrument detects strip joints and open welds and signals to have the Rotoflux® rotary test probes, and the phased array test head move out of the way to avoid damage.   

  An Echomac® Weld Zone Test system installed in India, is inspecting large diameter tubes for hydraulic cylinders, destined for critical applications. This system, supported by a cantilevered beam, features a conventional Ultrasonic test head installed right after the welding operation.  Designed to test 63.5mm to 190mm diameter tube with wall thickness ranging from 4mm to 12.7mm at speeds up to 45 meters per minute, the system is detecting OD and ID longitudinal defects, typically found in ERW processing.

  Magnetic Analysis Corp.
  103 Fairview Park Drive, Elmsford, New York 10523-1544
  Tel: +1-914-530-2000   Fax: +1-914-703-3790
  www.mac-ndt.com

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